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首页> 外文期刊>Bulletin of earthquake engineering >Static versus modal analysis: influence on inelastic response of multi-storey asymmetric buildings
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Static versus modal analysis: influence on inelastic response of multi-storey asymmetric buildings

机译：静态与模态分析：对多层非对称建筑物非弹性响应的影响

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The paper investigates the influence of design procedures on the seismic response of multi-storey asymmetric buildings. To this end, some structures are designed according to methods based on either static or modal analysis, with or without design eccentricities. The seismic response of these systems is determined by means of inelastic dynamic analyses and the design is thoroughly examined in order to explain the results of the dynamic analyses. Attention is basically focused on the ability of design methods to prevent asymmetric buildings from experiencing ductility demands much larger than those of the corresponding torsionally balanced systems. Numerical analyses underline that while design procedures based on either static or modal analysis are suitable for the design of torsionally rigid structures only those based on modal analysis lead to the satisfactory performance of torsionally flexible buildings. Furthermore, the study highlights the qualities of a design method proposed by the Authors. Its application does not require any explicit calculation of design eccentricities and leads to proper seismic response of both torsionally rigid and flexible asymmetric buildings.
机译：本文研究了设计程序对多层非对称建筑物地震响应的影响。为此，根据基于静态或模态分析的方法设计一些结构，带有或不带有设计偏心率。这些系统的地震响应是通过非弹性动力分析确定的，并且对设计进行了彻底的检查，以解释动力分析的结果。基本上，注意力集中在设计方法上，以防止不对称建筑物遭受延展性需求，而这种能力比相应的扭转平衡系统要大得多。数值分析强调，虽然基于静态或模态分析的设计程序适用于抗扭刚体结构的设计，但只有基于模态分析的设计程序才能使抗扭柔性建筑物获得令人满意的性能。此外，研究突出了作者提出的设计方法的质量。它的应用不需要对设计偏心率进行任何显式的计算，并且可以为抗扭刚性和柔性非对称建筑物提供适当的地震响应。

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